Phillies catcher Carlos Ruiz has been sidelined since suffering a concussion June 26 will begin a rehab assignment Thursday with Single-A Clearwater.

Ruiz was hit in the head with a pitch in the 11th inning of a 14-inning victory over the Miami Marlins at Citizens Bank Park and reported concussion symptoms after finishing the game.

Baseline tests later diagnosed Ruiz with the second concussion of his career and he has been on the disabled list ever since.

Prior to suffering the injury, Ruiz was batting .257 with two home runs and 14 RBIs this season.

Additionally, infielder Reid Brignac was scheduled to begin a rehab assignment on Tuesday for the Gulf Coast League Phillies, but both Tuesday and Wednesday's games were postponed. Brignac has been on the disabled list since June 19 with a sprained left ankle.